Hose-clamp.



' PATENTED NOV. 6, 1906.

J. GLARK. HOSE CLAMP.

APPLICATION FILED JULY 24, 1905.

IN VENTYOH UNITED STATES PATENT OFFICE.

JAM S CLARK, or nginronn, PENNSYLVANIA.

HOSE-CLAMP.

No. s35,30o.

Specification of Letters Patent. lApplication filed July 24, 1905 Serial No. 271,605.

'Patented Nov. 6, 1906.

To all whom it may concern.-

Be it known that I,'JAMEs CLARK, a citizen of the United States, residing at Bradford, in the county of McKean and State of Pennsylvania, have invented a new and useful Hose- Clamp, of which the following is a specificatlon.

My invention relates to improvements in hose-clamps for securing the nipples of cou lings or unions in the ends of a hose or t e like and it consists of certain novel features of construction, combination, and arrangement of parts hereinafter described and claimed. a

The object of the invention isto provide a sim le, durable, and inexpensive hose-clamp of this character which will hold the nipple securely in the hose and revent the possibility of the nipple being lown out by high pressure within the 'hose.

The above and other objects, which will appear as the nature of my invention is better-understood, are accomplished by means of the construction illustrated in the accompanying drawings, in which igure 1 is an elevation of one end of my improved hose-clamp. Fig. 2 is a view of one side of the same. Fig. 3 is a view of the opposite end of the clamp. Fig. 4 is a .view 0 the opposite side of the same. Figs. 5 and 6 are res ectively side and end views of the nipple. ig. 7 is a longitudinal sectional view through the clamp and 111' ple secured upon the end of the hose; and Fig. 8 is a detail end elevation of one-half of the clam showing the latter secured upon the nipp e and hose.

Referring to the drawings by numeral, 1 denotes the two jaws of my improved hoseclamp, which are formed integrally upon the free ends of resilient arms 3. The latter project from diametrically o posite points from one'face of ahead 2, W 'ch is 1n the form of a ring or disk formed with a central openin 4. The openin 4 is adapted to receive 518 outer screw-t eaded end of the nipple 6 and to engage the outer face of an annular flange 5, formed upon the nipple between its outer threaded end and its tapered inner end, which is inserted in the hose 8, as

shown in 7 of the drawings. The engagement of the annular flange 5 with the inner face of the head or ring 2 prevents the removal of the ni ple from the hose when the clamp is secured to the hose as in Fig. 7. The clamp is thus secured by bolts or similar fastenings 9, which are passed through apertured lugs 7, formed integral with and upon opposite sides of the two semicircular jaws 1 o the clamp. These apertured lugs 7 are disposed some distance from the ends of said jaw, sand the latter have their inner faces, which engage the exterior of the hose, reinforced, as shown at 10, to provide a shoulder 10 at the intersection of the arms and the reinforce, so that they will become embedded in'the hose when the two jaws and their sprlng or resilient arms 3 are drawn to ether by tightening the nuts upon the b0 ts 9. This construction permits theclamp tobe securely enga ed with the hose, so that it cannot be pu ed off, and the nip le 6 will therefore be securely retained in t e end'of the hose. The nipple 6 may be of the form shown or of any other suitable form and construction, so that it maybe engaged-with the coacting part of a coupling or union of any description.

I wish it to be understood that the inner surfaces of the arms and their reinforce are made smooth, and, further, the outer surface of the nipple is also made smooth and is not interrupted by projections or teeth.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A hose-clamp comprising spring-arms having reinforced inner ends, each of which is provided with inner, smooth surfaces, semicircular jaws on the outer ends of the arms with an o ening between the same, a shoulder formed at the intersection of each arm and its reinforce, a niple provided with an outer smoothsurface aving one end of ahose I thereon mounted between the arms and reinforce, said nip le having a screw-threaded outer end whic rojects through and above said opening, sai nipple being provided with a flange which serves to contact with the inner surface of the jaws, a cylindrical bearing Ioo i senses on said nipple, arranged between its serew- In testimony whereof I have signed my threaded end and its fien 'e, means for elampname to this specification in the presence of ing the hose between saia smoeth surfaces of two subscribing witnesses.

the nipple, the arms and its reinforce end JAMES CLARK. against the shoulder, said means also serving Witnesses: to contest the jaws with the cylindrical besr- LESLIE D. BLAGKFORD,

ing, substantially as described. PATRICK J. GANEY. 

